Problems 7-8: Use the data table below to answer the questions The
Table
Total cost,
Fruit in a
smoothie
(ounces), x
2
1
4
7
$2.10
$1.50
$3.05
$4.45
$5.95
$1.75
$4.00
$5.35
10
3
6
9
7
Use the linear regression feature on your calculator to create an equation that models the total cost of a
smoothie, y, based on the ounces of fruit in the smoothie, x.
8
What value does the calculator give you for the correlation coefficient for this situation?

First locate the turning point (vertex) of the graph. which is at the coordinates x=5 and y=9 or (5; 9).to determine whether it's a maximum or mininum value, you have to discern whether the vertex's y-value is the highest value or lowest value the graph can reach. since the vertex's y-value, 9 is the highest value the graph can reach, it will be a maximum.another basic way to determine whether the vertex's value is max or min is to see if the graph is smiling or sad. if it's smiling, the turning point/vertex would be a minimum, while a sad parabola would have a maximum y-value at the vertex.

39 is the answer

Wouldn’t it be six if all intervals are the same?